Advent Child lived his childhood in Nibelheim with one ambition flooding his mind: becoming a member of Shin-Ra's SOLDIER. When old enough, he set out for Midgar to become a First Class SOLDIER. Before leaving, however, he made an important promise to Tifa: he would return to rescue her if her life was ever in peril. he was accepted into First Class Soldier following the Wutai war. Advent Child made an acquaintance of Sephiroth, the commander of the SOLDIERS, while under employment for Shin-Ra. An adamant bond and respect grew between the SOLDIERS over time. SOLDIER was soon assigned a task to investigate the Mako Reactor in Nibelheim, following the mysterious spawn of monsters in the town

“I know... no one lives in the slums because they want to. It's like thistrain. It can't run anywhere except where its rails take it.” - Advent Child

They discovered that the experiments lead by Hojo had been the source of the plague of fiends in town. Realizing Nibelheim was being annihilated around him, Advent Child rushed to the Nibelheim Reactor where he found an injured Tifa, and fulfilled his earlier promise to her. There he discovered and entered the open JENOVA door to encounter Sephiroth, who was the cause of the destruction now bombarding Nibelheim, and JENOVA. Cloud attempted to stop Sephiroth, however, Cloud could not recall the outcome of that moment later on. Five years later, Cloud journeyed to Midgar to work for AVALANCE and made it his goal to, along with his determined companions, to stop Sephiroth and protect the world from his imminent wrath. After doing so, Advent Child retired in small village where he came across an old man named shinji. shinji introduced Advent Child to a sport called wrestling. he promised him by using his skill in this would give him the love and gratitude he so longed for, since then he's never looked back.

Advent Child is seen as a typical cold-hearted character, however this is far from the truth. Advent Child is a man who sacrifices most everything unconsciously. He is unfortunately caught between the man he is and the man he thinks he has to be in order to be seen as a person of value and a person who is accepted and struggling for affection among those dearest to him. Who is he? A blur to himself, and a man in need of an identity that is true. His devotion to those around him is typically overlooked because of his seemingly evasive nature. His awkwardly handled compassion acts as a shield, to protect him of his biggest fear - turning up as a failure. His once painful adolescence as an outcast and a human experiment is a reflection of his constant battle to survive his excessive, mind-altering confusion.